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Which of the following alternatives will be cheaper (1) A 100 h.p AC, 3-phase motor (2) Four motors of 25 h.p each (3) Five motors of 20 h.p each (4) 10 motors of 10 h.p each explain
2954A synchronous machines has higher capacity for (1) Leading power factor (2) Lagging power factor (3) Does not depend upon the power factor of machine (4) None of the above
JSW,
2 16390One 200 V, 100 W bulb is connected in series with primary of a 200 V, 10 kVA transformer. If its secondary is kept open circuited, then the bulb would have (1) Full brightness (2) Poor brightness (3) A little less than full brightness (4) More than full brightness...explain
2 9288The maximum demand of consumer is 2 kW and his daily energy consumption is 20 units. Its Load Factor is (1) 10.15% (2) 41.6 % (3) 50 % (4) 60%
2 23675How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15
3216We have ONLINE UPS 15KvA (3PHASE 440V I/P,3PHASE O/P,440V) I want to step down from 440 to 220 V What to do. Pl. suggest with specification.
ARDE,
1 3152an ac induction motor gets overheated when operated at a low frequency of 25 hz a instead of 50 hz. reason?
1 3772Post New Electrical Engineering Questions
Why does inductive loads consume KVARs?
What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?
After completing iti in electrician, how can i get certificate of electrical supervisor? What ia requirements. For it?
If I want to buy a new Xformer for my plant what are the main parameter will I need to check?
dear sir, i completed diploma in electrical in 2005, how i can get electrical supervisor liance in mumbai
why are distributed windings generally used in alternators?
how to calculate percentage impedence at 75 deg C at normal tap
What's the difference between non break power supply and non break non short break power supply
what maximum range of star & delta in hp or kw ?
Define availability (operational)?
what is PID control in VFD drives?
why ht motors are star connected?
sir i have a car stereo system and there is jack on him so can u tell me a way to find out their power terminals on the jack or on the circuit board"
Which standard we are following earthing resistance test
XYZ
